Purpose: The purpose of this lab was to determine the freezing point of pure water‚ the experimental van’t Hoff factor for a substance and the molar mass of an unknown solution. Reagents: 25mL deionized Water ¼ to ½ inches of rock salt 25mL Sodium Nitrate (NaNO3 ) 25mL unknown solution – handle unknown solution carefully Procedure: For part 1‚ the freezing point of deionized water was determined. An ice bath was prepared by filling a 600mL beaker ¾ full of ice and covered with ¼ to
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The local atmospheric pressure is 88 kPa. Now‚ heat is transferred to refrigerant-134a until the temperature is 15°C. Determine (a) the final pressure‚ (b) the change in the volume of the cylinder‚ and (c) the change in the enthalpy of the refrigerant-134a. 3. Determine the specific volume of superheated water vapor at 10 MPa and 400°C‚ using (a) the ideal-gas equation‚ (b) the steam tables. 4. Determine the specific volume of superheated water vapor at 3.5 MPa and 450°C based on (a) the ideal-gas
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Urban Heat Island – Cause‚ Effects and Mitigation Measures in USA Table of Contents • Introduction • The Phenomenon of Urban Heat Island • Causes and Effects of UHI • Mitigation Efforts • Urban Heat Island (UHI) of Urban Cities of United States • UHI and Climate Trends of Some Major cities of US • Urban Heat Island (UHI) Mitigation Strategies in United States • Conclusion Urban Heat Islands Introduction Urban Heat Island – UHI is one of the important
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similar‚ which had many aspects on their transformation of mechanisms. Microstructure of bainite seems to be darker than the mastenisite under a microscope. The reason behind bainite structure became useful was because of its hardness. There are few Heat treatments that steel can be tested by such as Annealing‚ quenching Harderning‚ and Normalizing. Body Bainite is A combination of ferrite and cementite in ferrous metals that is harder than pearlite. Bainite contains needlelike grain structures
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Air Conditioning Psychrometrics Course No: M05-005 Credit: 5 PDH A. Bhatia Continuing Education and Development‚ Inc. 9 Greyridge Farm Court Stony Point‚ NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com AIRCONDITIONING PSYCHROMETRICS AIR CONDITIONING PSYCHROMETRICS In air-conditioning system‚ the air must undergo one or several of the following processes: Psychrometrics can be used to predict changes in the environment when the amount of heat and/or
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1. MAJOR FACTS: The Muenster Pump Company has manufactured high quality agricultural pumps for over 40 years. The company’s only plant is located in the small Midwestern city of Muenster. The company is Muenster’s largest employer. Bob Dorf‚ president of the firm‚ is the grandson of the founder‚ Emil Doff. Bob and his family‚ along with key personnel‚ live in or near the city. Cordial relations exist between the firm and the city fathers Since its founding‚ the company has always been as self-sufficient
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WATER OUR LIFELINE Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of the fluids of living things. As a chemical compound‚ a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water covers 71% of the Earth’s surface.[1] It is vital for all known forms of life. On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚ 1.7% in glaciers and the ice caps of Antarctica
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Heat Exchanger Network Design for the Cumene Process | C.A.K.E. Because We’re Just that Delicious Iowa State University Ames IA‚ 50010 | Crego‚ Courtney LHines‚ KirkMonterrubio‚ AmyToohey‚ Erin | Abstract Often a major consideration of a chemical process plant is the high cost of utilities used for heating and cooling of process streams. Heat integration of process streams is an effective way to reduce the cost of these utilities‚ and this process is often referred to as a MUMNE (minimum
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How PPI (Proton Pump Inhibitors) Cause Anxiety? You might be feeling stressed and anxious at times and wondering why does it happening. I recommend you to check if you are taking proton pump inhibitors. Your doctor might have prescribed you proton pump inhibitors for your stomach related disease and you might be taking it for a long time. Yes‚ chronic use of proton pump inhibitors can show anxiety symptoms! When Do PPIs Prescribe? In digestive diseases like gastritis‚ there is increased secretion
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Technology in Practice Part II: Intra-Aortic Balloon Pump Background of Technology Before tThe intra-aortic balloon pump (IABP) became a successful piece of technology‚ it was first introduced by Harken in 1958 in hopes of treating left heart failure (IABPumpers‚ 2006). Harken thought that by removing a certain amount of blood from both femoral arteries during systole‚ and rapidly replacing it during diastole‚ he could augment the cardiac output and increase coronary perfusion. However
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